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Re: XS Library - Embedding C code in Perl

by Zaxo (Archbishop)
on Nov 14, 2002 at 00:11 UTC ( #212728=note: print w/replies, xml ) Need Help??


in reply to XS Library - Embedding C code in Perl

Inline is fine, but it is perhaps not as well integrated into ExtUtils and module building as the standard XS interface.

To answer your question directly, you should #include the perl headers before your C code, unless there is good reason not to. That gives you macros and functions to ease writing your functions . This example is adapted from perlxstut, which I recommend to you:

MODULE = Foo PACKAGE = Foo int is_even(input) int input CODE: RETVAL = (input % 2 == 0); OUTPUT: RETVAL

I'd parse the command line in perl before calling library functions with the arguments.

To link to an external lib, #include <foo.h> (its header) in the xs file, and put the linker directive '-lfoo' in Makefile.PL's LIB parameter.

After Compline,
Zaxo

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